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| Patents for B08B 7 - Cleaning by methods not provided for in a single other subclass or a single group in this subclass (12,806) |
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| 05/25/1976 | US3958294 Rotary scraper | | 04/20/1976 | US3951065 Explosive device and method for removing ice from railroad tunnels | | 04/13/1976 | US3950185 Film removing compositions | | 04/06/1976 | US3948679 Cleaning liquid systems including controlled heating and cooling of the liquid | | 03/02/1976 | US3941692 Cleaning of cargo compartments | | 02/03/1976 | US3936659 Electrically heated oven for high temperature cleaning |
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