In 1879, Auguste Bartholdi received design patent number 11,023 titled "Design for a Statue". It was for the Statue of Liberty.
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| Application No. | Application Title | Issue Date |
| 20070215093 | Opposed piston internal-combustion engine with hypocycloidal drive and generator apparatus An opposed piston, internal-combustion engine including a cylinder with a bore and opposed pistons disposed within the bore is provided with one or more hypocycloidal drives that convert the linear motion of a piston to rotary output motion. An electrical generator incl... | 09/20/2007 |
| 20060243228 | Double piston cycle engine A Dual Piston Cycle Engine utilizes a unique dual piston apparatus that includes: a first cylinder housing a first piston therein; a second cylinder thermally isolated from the first cylinder and housing a second piston therein; an intake valve coupled to the first cyli... | 11/02/2006 |