Signals and indicators – Horns – whistles and compressional wave generators – Manually actuated air compressor
Patent
1976-04-09
1977-08-30
Queisser, Richard C.
Signals and indicators
Horns, whistles and compressional wave generators
Manually actuated air compressor
40 65, 40 774, G09F 1124
Patent
active
040447103
ABSTRACT:
An inventory control board includes a housing in which a series of front-to-rear spaced transparent sections are provided. A series of slots are formed in the housing beneath the transparent sections, and a series of shafts corresponding in number to the number of slots are rotatably mounted in the housing each such shaft being laterally spaced from and in alignment with one of the slots. Each shaft carries a pair of drums for rotation therewith, and windows are located in the housing above each of the drums to afford visual access to indicia carried by the drums.
REFERENCES:
patent: 1235924 (1917-08-01), Read
patent: 1851145 (1932-03-01), Auth
patent: 1912418 (1933-06-01), Vehling et al.
patent: 2503255 (1950-04-01), George
patent: 3305958 (1967-02-01), Price, Jr.
Halpern Joel
Queisser Richard C.
Yasich Daniel M.
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