Did You Know...
...When G.G. Hubbard learned of his future son-in-law's invention, he called it "only a toy." His daughter was engaged to a young man named Alexander Graham Bell.
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| Number | Title | Issue Date |
| 4020928 | Railroad brake shoes with separable insert engageable with flange of a wheel An insert for a railroad brake shoe having a support plate engageable complementally with a portion of the shoe back. Shoulders are provided for preventing the lateral and longitudinal displacement of the insert relative to the brake head assembly. A guid... | 05/03/1977 |
