B - Operations – Transporting – 41 – M
Patent
B - Operations, Transporting
41
M
42/11
B41M 5/12 (1980.01)
Patent
CA 1185092
ABSTRACT Improved receptor of CF coating composition for chemical carbonless copy paper employing spirit blue in carbinol form as a dye precursor type chromogenic reagent material.
402180
Carlson Gene D.
Ehrhardt Gerry H.
Frye Copysystems Inc.
Macrae & Co.
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