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ROW 298 · LEG 50 ITEM 3 · DUG NOVEMBER 2026
Thread one — the amplifier "first." The claim as its makers print it: the DC300 was "the first reliable, solid-state, high-power amplifier" (Crown/Harman) and "the first reliable high-output transistor power amplifier" of the trade histories. The strands: invented — the circuit was Gerald Stanley's, developed from his undergraduate summer work at Crown and his 1966 master's-year work on the size problem, and patented (U.S. 3,493,879, 1970); the NAMM oral-history record adds a strand the maker's version omits, that the design began life "as an ultra-quality power supply for General Electric" before Crown sold it as an amplifier — both tellings stand, unmerged. Engineered and built — at Crown International, Elkhart, from 1967. Resident — Stanley's Osceola residence is face-proven from 2003, not from 1967, so the "first" belongs to this ground only in the inventor's later-residence strand, and it is printed at exactly that size. The thread's contest is real but external — solid-state amplifier priority of the 1960s is argued among several makers in the trade literature — and no strand of it seats the invention itself in Osceola.
Thread two — the refrigerator templates. The Domelre / Mellowes / Monitor Top pattern (invented here vs. engineered here vs. merely built here) was tested for any refrigerator or cooling thread on this ground: none exists — no refrigerator invention, claim, or manufacture attaches to Osceola or Penn Township in any source reached, and the thread prints as a tested negative rather than being inflated with the township's ice and creamery trades.
Thread three — the ground's own first, which is a mill, not a patent. The one contested "first" the local record actually argues is the first saw mill on Baugo Creek, and it stands told whole in Notable People with its three unreconciled accounts (1831/32, builder unnamed, Chapman; 1832, builder unnamed, Howard; 1833, by William Ireland, on the town page's quotation of Ireland's "Memories"). It is pointed to here, not re-told, and it is flagged for what it is: a priority dispute among builders, with no invention claim and no patent in any strand. Closure: DUG — the amplifier thread separated into invented / engineered / built / resident strands with the residence strand dated honestly; the refrigerator pattern tested negative; the mill first carried by pointer to Notable People, where its conflict already prints whole.
Sources: ProSoundWeb DC300 history and Stanley's first-person account therein; Crown Audio technology page; NAMM oral histories of Gerald Stanley and Clay Barclay (the General Electric power-supply strand); Harman International profile; Notable People (banked), mills article, for thread three; patent rolls and trade press as searched November 2026 for any refrigerator thread, none found.