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| Patents for John Bath & Co. | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,516,909 | Nov. 25, 1924 | J. Bath | Micrometer Caliper | micrometers | |
| 1,722,834 | Jul. 30, 1929 | J. Bath | Internal Micrometer Gauge | special purpose gauges | |