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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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| Number | Title | Issue Date |
| 5583433 | Apparatus for measuring length using ultrasonic delay line and matching a phase of drive pulse with reflected pulse A length measuring apparatus that uses an ultrasonic magnetostrictive delay line can detect a position with high accuracy by utilizing a reflected wave positively. In a measuring apparatus using an ultrasonic magnetostrictive delay line in which a wave tr... | 12/10/1996 |
| 5252919 | Apparatus producing trapezoidal waveforms from a pair of magnetic sensors for detecting the rotating angle of an object A magnetic field generating member is attached to a rotable object the angle of which is to be detected. The apparatus includes first and second magnetic sensors located in the magnetic field generated by the magnetic field generating member, first and se... | 10/12/1993 |
| 5244055 | Transport control apparatus for automated guided vehicles A transport control apparatus for a plurality of automated guided vehicles traveling a transport path having a confluence junction, a turnout or a crossing is comprised of a conductor of a loop-shaped configuration formed to surround the confluence juncti... | 09/14/1993 |
| 5010298 | Variable inductance displacement measuring device with slidable metal sleeve and ferrite bead core A displacement measuring apparatus including a variable inductance coil formed of a pair of coils, on a core of predetermined length made of a material having high magnetic permeability. The pair of coils are disposed on a core adjacent to each other in t... | 04/23/1991 |
| 4788498 | Magnetic detector for an unmanned vehicle control system A magnetic detector for detecting the magnetic field of a magnetic field generating substance including an even number of saturable coils aligned in a straight line with the distance between adjacent ones larger than the width of the magnetic field genera... | 11/29/1988 |
| 4629875 | Verifying device for a key card A verifying device for a key card on which a magnetic signal is recorded is formed of a set card on which a predetermined reference magnetic signal is recorded, a magnetic sensor consisting of a saturable core and a winding wound thereon, an oscillator fo... | 12/16/1986 |
