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All Patents in class 418/85 | |||||
Number | Date | Patentee | Title | Type | |
683,614 | Oct. 01, 1901 | C.R. Meston | Air-compressor | air compressors | |
2,489,887 | Nov. 29, 1949 | C.R. Houghton | Rotary pump | rotary pumps |