Show LATEST CHECK ROW PLANTER provision made for easy method of Tripp lra seed valves operated by movement of machine tho the scientific american in describing a check row planter invented by R I 1 foreman of sheridan III sas sir air foremans invention Is an improvement pro in check row planters roni 1 ak 11 row check row planter has for its object the provision ot of san pie easily operated means for tripping the seed to cause the planter to drop a ch chairge arge of seed at regular predetermined intervals nith iab olt cont the use of knotted wire the said meau being operated by the movement of the machine through the held field |