Classification: / Company Info,
Related with: (Companies): COMMODORE,
Info: (Info from DUDEK Emil):
The first COMMODORE pocket was the 110 from early 1972 (possibly late 1971). This appears to be a branded BOWMAR model.
Very sturdy calculators with rechargeable batteries, KLIXON keyboards and RPN Logic.
This model was rapidly followed by the redesigned MM1 and MM2 series 'Minuteman' calculators, followed by the...

Miniature Minuteman Series:
Fascinating early miniature calculators with confusing Minuteman / MM numbering system. Most had a curvy white plastic case that was quite innovative for its time.
Notice the first use of the red, white and blue colour scheme for the keys - I guess this was equally patriotic for American or British markets.
They are especially nice for using the flat (multi-dot) type of LED displays which are bright and allow a wide angle of viewing.
However, some (presumably later ones) use the standard bubble-lens LEDs which have a much more limited viewing angle.
The range appears to cover mid 1973 to early 1974 and uses the MOS range of ICs - which COMMODORE were later to buy.
They are also surprisingly low in component count when you open them up which must have given COMMODORE quite a cost advantage over its competitors.
Good examples are hard to come by as the case had a front popper closing system that could damage either the case or the display escutcheon.

Custom Green Line Series:
The same case throughout with slightly varying size of oversized green plastic display filter.
Most start with the GL (for Green Line) prefix but the later ones started with a nine and then were followed by an R or D.
In both cases the 'R' stood for rechargeable batteries, the 'D' being disposable and all could be powered by an adapter.
In the GL-series it appears that the second digit stood for the total number of display digits. The range appears to have spanned late 1974 to mid-1976.

Red LED '7'- and '8'-series:
The numerous '7'-series consisted of tall slim bodied, usually basic calculators in brown/beige, beige or black.
The '8'-series had a similar design but with a fatter body to accommodate wider and more keys. All were powered by 9V batteries or an adapter.
This design survived many years from late 1974 to mid 1979 though the later models tended to have cheaper looking aluminium keyboard surrounds printed black.
It also appears that these models are more commonly made (actually assembled is the general opinion) in local territories rather than in the Far East.
This type of case was used at least once for a Scientific model, the SR7919 with a "function key" operation to minimise the number of keys required.
The 'M'-suffix for memory and 'A' for disposable is almost consistent (the 'D' being dropped from the rear label but kept on the box).

Scientific, Financial and Button Monsters:
These fabulous calculators showed COMMODORE's desire to push the technology to the limit and supply advanced specialist calculators.
Some like the SR (Slide Rule) series were the forerunners of today's standard scientific models - but with occasional obscure functions.
The 'F' (Financial) and 'P' (Programmable) series died with the advent of computers and spreadsheets.
There were also more esoteric series such as the 'N' (Navigation), 'S' (Statistician) and 'M' (Mathematician) that were never even copied by competitors.

The Minuteman (MM) Name:
The Minuteman marketing name was used for the early COMMODORE calculators and continued randomly in use as a secondary branding well into the late 1970s.
The origin of the name Minuteman is traceable to the 17th century when it was a US (in fact Massachusetts) military name for a small hand-picked elite force which were required to be highly mobile and able to assemble quickly.
Typically 25 years of age or younger, they were chosen for their enthusiasm, reliability, and physical strength. The Minutemen were the first armed militia to arrive or await a battle.
They are mentioned famously supporting Washington during the Revolutionary War in America.
Presumably it was this "ready at short notice to solve your problem" that spurred COMMODORE on to use this as a strap-line.
Internet: Link-1: VINTAGE CALCULATORS WEB MUSEUM, Link-2