...that on Dec. 15, 1836, the Patent Office was completely destroyed by fire? Lost were some 7,000 models, 9,000 drawings, and 230 books plus all records of patent applications and grants.
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| Number | Title | Issue Date |
| 7328807 | Method and device for classifying fine particles The present invention provides a method for classifying fine particles, the method comprising: introducing a fine particle dispersion in which fine particles are dispersed in a liquid medium into an inlet of a microchannel having the inlet and a recovery portion; an... | 02/12/2008 |
| 5479728 | Apparatus for backfilling and tamping a trench A backfiller and tamper unit (10) is disclosed which is a self contained unit that acts to both backfill and compact soil into a trench for complete restoration. The unit includes a tractor (12) which mounts a vibrator and tamping wheel assembly (14) and ... | 01/02/1996 |
| 5477792 | Apparatus for preparing soil for seed and method of using the apparatus A method of continuously applying an additive to soil with a soil treating apparatus as the soil treating apparatus is advanced in a travel direction along a planting path on soil being treated. The method includes the steps of resituating residue in the ... | 12/26/1995 |
| 4381823 | Combination fertilizer applicator and tillage implement with adjustable sweep assemblies Apparatus for combining light tillage and application of liquid fertilizer in a single implement includes a frame having at least a forward and a rear mounting bar. A plurality of sweep assemblies are mounted to the forward mounting bar. Anhydrous fertili... | 05/03/1983 |
| 4336844 | Farm implement There is disclosed a farm implement having a frame connectible to a tractor by means of a three-point hitch to permit it to be moved forwardly over the ground level, a first set of chisels supported on the frame in laterally spaced-apart relation, a secon... | 06/29/1982 |
| 4333533 | Weeder for row crops A weeder for row crops has a main frame adapted to be mounted at the rear of a tractor. A pair of upright skid boards, spaced at the front and rearwardly divergent, are adjustably interconnected so that their spacing and angular relationship may be varied... | 06/08/1982 |
| 4088196 | Soil cultivating implements A cultivator implement has a row of freely rotatable soil working members connected to a transverse frame beam by brackets. The members each have a stub shaft secured to an inclined web of a corresponding bracket so that the axis of rotation of each membe... | 05/09/1978 |
| 4010900 | Mobile agricultural spray machine An agricultural spraying machine comprising an assembly having at least two moving sections resting on wheels on the soil. This assembly supports at least two spray conduits having spraying nozzles and is attached to a tractor vehicle having a powder feed... | 03/08/1977 |