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 |
| 6202329 | Apparatus for removing snow from rooftops An apparatus for removing snow from an inclined surface, including a frame member having snow-cutting legs and connected to an elongated handle member, wheels of at least 3 inches in diameter attached to the snow-cutting legs for allowing the frame member... | 03/20/2001 |
| 4423939 | Lens attachment and method for multiple imaging A multiple imaging attachment 30 is provided for achieving proper multiple imaging when the amount of light is changed to expose different positions of a film frame. The multiple imaging attachment 30 is coupled to a camera 10 so that an opening 60 in the... | 01/03/1984 |
| 4200657 | Low air flow fumigation method A method of treating an agricultural product, including the steps of placing the product within a storage container; providing a forced air supply to the container; introducing a gaseous chemical into the container, the particular chemical being selected ... | 04/29/1980 |
| 4183497 | Chamfer strip for concrete structures There is disclosed a chamfer device for use in the construction of concrete structures having chamferred edges. The chamfer device is adapted to be affixed to a support structure and the device is adapted to receive and support in a concrete sealing relat... | 01/15/1980 |
| 4174389 | Ophthalmic use of collagenase A method for the selective lysis of collagen fibrils located in the ocular region of a mammal comprising injecting into said ocular region an effective amount of a pharmacologically suitable solution comprising collagenase; and contacting said fibrils wit... | 11/13/1979 |
