Boots – shoes – and leggings
Patent
1989-01-30
1991-05-21
Lall, Parshotam S.
Boots, shoes, and leggings
36470501, 364706, G03B 700, G06F 900
Patent
active
050180843
ABSTRACT:
A darkroom calculator that performs mass, volume, concentration and temperature conversions useful in the preparation of darkroom chemicals; calculation of proper development times and temperatures for exposed film; calculation of proper dilution temperatures; calculation of exposure values relevant to the enlargement process and exposure of sensitized substrates; and monitoring of the passage of time and solution temperature levels.
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Lall Parshotam S.
Ramirez Ellis B.
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