TY - GEN digital ID - 139568494 TI - Report AU - Ellsworth, Henry Leavitt AU - Forsyth, John AU - United States. AU - Gale Cengage Learning PY - 1836 PB - [United States? s.n. DB - UniCat KW - Patent laws and legislation -- United States KW - Forsyth UR - https://www.unicat.be/uniCat?func=search&query=sysid:139568494 AB - ER -