| Patents for John A. Caldwell |
Patents 1 -
5
of 5
      |
| Number | Date | Patentee | Title | Type |
| 190,193 | May 01, 1877 | J.A. Caldwell | Coffee Roaster | coffee roasters |
| 191,026 | May 22, 1877 | J.A. Caldwell | Tool For Tightening and Fastening Straps For Securing Hose To Coupling | pliers |
| 197,717 | Dec. 04, 1877 | J.A. Caldwell | Implement for Tightening and Fastening Straps or Bands Employed in Securing Hose to Couplings | pliers |
| 211,132 | Jan. 07, 1879 | J.A. Caldwell | Improvement in Instruments for Scribing Stair-Curves | bevels |
| 495,300 | Apr. 11, 1893 | J.A. Caldwell | Stair-Beveling Instrument | carpenter |
