Quotables
"That the automobile has practically reached the limit of its development is suggested by the fact that during the past year no improvements of a radical nature have been introduced."
Scientific American ; Jan. 2 edition, 1909
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| Number | Title | Issue Date |
| 4484728 | Rolling seal sluice gate A sluice gate including a closure member comprising a sheet of flexible fabric reinforced polymeric material having pairs of reinforcing members extending horizontally across the sheet with one member of each pair located on the upstream side and the othe... | 11/27/1984 |
| 4103496 | Collapsible and expansible barrage A collapsible and expansible barrage comprising a threshold structure dised at the bottom of the waterway, a metallic flap, provided with an upturned-glass type of air-tank, hinged to said threshold structure, and a flexible sheet connected at one of its... | 08/01/1978 |
