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| Patents for Dreier Brothers, Inc. | |||||
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| Number | Date | Patentee | Title | Type | |
| D178,504 | Aug. 14, 1956 | R.C. Dreier | Hack saw | hacksaws | |
| 2,782,820 | Feb. 26, 1957 | R.C. Druier | Double Hac-Saw | hacksaws | |
| D180,271 | May 14, 1957 | R.C. Dreier | Hack Saw | hacksaws | |
| 2,796,098 | Jun. 18, 1957 | R.C. Dreier | Hand-saw construction | hacksaws | |
| 2,849,039 | Aug. 26, 1958 | R.C. Dreier | Saw construction | compass saws | |
| D184,860 | Apr. 14, 1959 | R.C. Dreier | Saw Handle | saw handles | |