Symbols for identifying characteristics

Details Symbols for identifying characteristics Symbols for identifying characteristics

1976-06-09

1979-04-10

Schnall, Jerome

Printed matter

Maps

35 24R, 35 26, G09B 2900

Patent

active

041485076

ABSTRACT:
Presenting a plurality of characteristics by presenting each characteristic using a symbol which per se identifies the characteristic by three concurrent visual impressions (quantity, tone, and extent) and is adaptable for use with any desired grey or tone scale.

REFERENCES:
patent: 58748 (1866-10-01), Apgar et al.
patent: 1512598 (1924-10-01), Harriman
patent: 2924895 (1960-02-01), Bachi

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